Ultrasonic Extraction-Single-Particle Inductively Coupled Plasma Mass Spectrometry for Analysis of Metal Nanoparticles in Seawater Sediments
10.19756/j.issn.0253-3820.251088
- VernacularTitle:超声提取-单颗粒电感耦合等离子体质谱法分析海水沉积物中的金属纳米颗粒
- Author:
Jie CHUN
1
;
Yu-Mei SONG
;
Chang WANG
;
Rui-Ling ZHANG
;
Peng-Ran GUO
;
Wei-Xin LIANG
;
Ting ZHANG
Author Information
1. 兰州理工大学石油化工学院,兰州 730050;广东省科学院测试分析研究所(中国广州分析测试中心),广东省化学测量与应急检测技术重点实验室,广州 510070;广东省科学院测试分析研究所(中国广州分析测试中心),广东省水环境污染在线监测工程技术研究中心,广州 510070
- Keywords:
Metal nanoparticles;
Ultrasonic extraction;
Single-particle inductively coupled plasma mass spectrometry;
Sediment
- From:
Chinese Journal of Analytical Chemistry
2025;53(6):987-997
- CountryChina
- Language:Chinese
-
Abstract:
Accurate analysis of metal nanoparticles(MNPs)in sediments is a prerequisite for assessing the ecological risks of MNPs in aquatic environmental sediments.In this study,an analytical method for quantitative detection of concentration and particle size distribution of silver-containing nanoparticles(Ag-NPs),zinc-containing nanoparticles(Zn-NPs),cerium-containing nanoparticles(Ce-NPs),and titanium-containing nanoparticles(Ti-NPs)in sediments was established based on ultrasonic extraction-single particle inductively coupled plasma mass spectrometry(SP-ICP-MS).The effects of sample preparation conditions such as extraction solvent type,solid-liquid ratio,ultrasonic time,and settling time on the recovery of MNPs were investigated.The results showed that the extraction of MNPs from sediment by distilled water could effectively eliminate the high background signal interference introduced by the extractant under the conditions of solid-liquid ratio of 1∶400(g∶mL),ultrasonic extraction time of 1 h and settling time of 3 h.The detection limits for particle size of Ag-NPs,Zn-NPs,Ce-NPs and Ti-NPs in sediments were 31,35,26 and 85 nm,respectively,while the detection limits of particle concentrations were 1.21×104,1.90×104,5.26×107 and 1.48×107 particles/g,respectively.The spiking recoveries of Ag-NPs,Zn-NPs,Ce-NPs and Ti-NPs in sediments were 62.1％-108.7％,with relative standard deviations below 10％.This method could rapidly,accurately and simultaneously determine the concentration and particle size distribution of various MNPs in sediments,and was successfully applied to analysis of Ag-NPs,Zn-NPs,Ce-NPs,and Ti-NPs in authentic marine sediments.
